From Aiglon Software:
Getting the color codes that you need is very easy. Simply move your mouse over the desired color and watch the "Hex & RGB Values" display in the main window. You can temporarily lock down the color codes by using the "F5 Key" to freeze them using the "F5 Key" again unfreezes things so that you can get your next set of codes. The copy to clipboard function is also very convenient if you prefer to paste your new codes into your notes (or web editor).